Can I use race skis for regular resort skiing if I'm an expert?

You can, but it depends on what you want from your skiing. Expert skiers who exclusively carve groomers and love the feeling of locked-in, high-speed carves may find race skis—particularly GS or cheater GS models—exhilarating. However, you'll be limited to groomed runs, the skis will be exhausting on long days, and any soft snow or variable conditions will be miserable. Most expert resort skiers are better served by high-end frontside or all-mountain skis that deliver 80-90% of the carving performance with far more versatility and forgiveness.